Intelligence, cognitive style, and psychological comparison
Astronomer & Science Communicator
Theoretical Physicist
Bridge between scientific elite and public understanding. High openness with poetic sensibility. Saw cosmic perspective as source of meaning.
Playful genius who made complex physics accessible. High openness, high extraversion. Valued understanding over credentials. Famously skeptical of authority.
Historical IQ estimates are approximations based on documented achievements, contemporary accounts, and cognitive analysis. They should be viewed as educated estimates rather than definitive measurements. Both Carl Sagan and Richard Feynman achieved remarkable things in their respective domains, and raw IQ alone doesn't capture the full picture of their intelligence and impact.
Discover your own IQ and see how you stack up against history's greatest minds.
Take IQ Test